Market Overview - On August 20, the chemical fiber sector rose by 2.77% compared to the previous trading day, with Jilin Carbon Valley leading the gains [1] - The Shanghai Composite Index closed at 3766.21, up 1.04%, while the Shenzhen Component Index closed at 11926.74, up 0.89% [1] Stock Performance - Jilin Carbon Valley (836077) closed at 16.23, up 11.16% with a trading volume of 281,100 shares and a transaction value of 444 million yuan [1] - Suzhou Longjie (603332) closed at 15.83, up 10.01% with a trading volume of 337,700 shares and a transaction value of 515 million yuan [1] - Jilin Chemical Fiber (000420) closed at 4.64, up 9.95% with a trading volume of 1,309,800 shares and a transaction value of 602 million yuan [1] - Other notable stocks include 聚合顺 (605166) at 13.00, up 7.17%, and 南京化纤 (600889) at 16.77, up 6.68% [1] Capital Flow - The chemical fiber sector saw a net inflow of 453 million yuan from main funds, while retail funds experienced a net outflow of 316 million yuan [2] - The main funds' net inflow for Jilin Chemical Fiber (000420) was 200 million yuan, accounting for 33.27% of its total [3] - Suzhou Longjie (603332) had a main fund net inflow of 119 million yuan, representing 23.14% of its total [3]

| 证券代码：600370 | 证券简称：三房巷 | 公告编号：2025-058 | | --- | --- | --- | | 转债代码：110092 | 转债简称：三房转债 | | 江苏三房巷聚材股份有限公司 关于控股股东部分股份解除质押及再质押的公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈 述或者重大遗漏，并对其内容的真实性、准确性和完整性承担法律责任。 重要内容提示： 江苏三房巷聚材股份有限公司（以下简称"公司"）控股股东三房巷集团 有限公司（以下简称"三房巷集团"）持有公司股份数量为2,967,261,031股，占公 司总股本的76.15%。本次解除质押及再质押后，三房巷集团累计质押股份数量为 1,749,049,900股，占其所持有公司股份总数的58.94%，占公司总股本的44.89%。 三房巷集团一致行动人江苏三房巷国际贸易有限公司（以下简称"三房巷国贸"） 持有公司股份数量为200,194,552股，占公司总股本的5.14%，未质押；三房巷集 团累计已质押股份数占三房巷集团及三房巷国贸所持有公司股份数的55.22%，占 公司总股本的44.89%。 近日，公司接到控股股 ...

Group 1 - The company, Sanfangxiang, announced the release and re-pledge of 20 million shares by its controlling shareholder, Sanfangxiang Group [2] - For the year 2024, the revenue composition of Sanfangxiang is as follows: 77.73% from the polyester industry, 20.13% from the chemical industry, 1.16% from other industries, and 0.97% from thermal power [2]

Investment Rating - The industry investment rating is "Positive" (maintained) [1] Core Viewpoints - The PTA industry is nearing the end of its expansion phase, with a projected new capacity of 8.7 million tons in 2025, while the demand for PTA products is expected to continue growing due to steady demand from downstream applications such as polyester fibers, bottle sheets, and films [6][31][32] Supply Side Summary - The domestic PTA industry's effective capacity increased from 46.69 million tons in 2019 to 84.27 million tons in 2024, with a compound annual growth rate (CAGR) of 12.5% [12][14] - As of August 2025, the industry concentration ratio (CR7) reached 76%, indicating a high level of market concentration and pricing power among leading companies [15][16] - The expansion of PTA capacity is expected to slow down, with 870,000 tons of new capacity planned for 2025, and an additional 800,000 tons planned for 2026 and beyond [19][20] Demand Side Summary - The primary demand for PTA comes from polyester fibers and films, with polyester fibers accounting for 71% of the demand and bottle sheets for 23% [26][28] - The apparent consumption of PTA in China increased from 42.36 million tons in 2019 to 65.58 million tons in 2024, with a CAGR of 9.13% [28][30] - Exports of PTA have been increasing, reaching 4.418 million tons in 2024, which is approximately 6.3% of the total domestic production [29][30] Profitability Forecast and Investment Recommendations - The report anticipates a gradual recovery in PTA product profitability as the supply-side dynamics improve and demand continues to rise [31] - Recommended stocks include Hengli Petrochemical, Rongsheng Petrochemical, Xin Fengming, and Tongkun Co., Ltd. Beneficiary stocks include Hengyi Petrochemical, Sanfangxiang, and Dongfang Shenghong [32][33]

8月14日，国内期市能化板块多数飘绿。其中，PTA期货主力合约开盘报4692.00元/吨，今日盘中低位震 荡运行，早盘收跌2.92%；截至发稿，PTA主力最高触及4704.00元，下方探低4630.00元，跌幅达1.36% 附近。 目前来看，PTA行情呈现震荡下行走势，盘面表现偏弱。对于PTA后市行情将如何运行，相关机构观点 汇总如下： 宁证期货指出，PTA开工率回升，且虹港石化3期250万吨装置投产和7月三房巷（600370）320万吨装置 新产能投放，PTA供应端存在一定压力。下游8-9月为传统纺织旺季，随着秋冬订单集中下达，聚酯开 工率或回升至90%附近，但聚酯利润不佳，长丝FDY、瓶片、短纤产品现金流压缩严重，可能会影响后 续聚酯企业的生产积极性。PTA跟随原油震荡偏弱运行。 中财期货指出，PTA产能利用率较上一工作日+3.05%至76.70%，威联、嘉兴重启，海南检修。美国7月 CPI低于预期，9月降息预期强化，美元强势压制下油价下行，PX、PTA偏弱运行，下游聚酯需求弱现 实持续影响，聚酯产销维持淡季水平。PTA供需预计较上周有所好转，平衡表偏去库。聚酯样本企业综 合产销率42.94%，较上期下跌 ...

Group 1 - The company has been deeply engaged in the polyester industry for many years, focusing on the "PTA - bottle-grade polyester chip" industrial chain to rationally plan its industrial structure and integrated layout [1] - The company is set to launch two bottle chip projects: the Xingjia New Materials 1.5 million tons green packaging materials project in July 2023 and the Xingye Plastics 1.5 million tons multifunctional bottle chip project in May 2025 [1] - In 2024, the downstream consumption of polyester bottle chips is expected to show moderate growth, with an annual production of 15.56 million tons, an increase of 18.80% year-on-year, and an annual consumption of 14.97 million tons, an increase of 20.63% year-on-year [1] Group 2 - The soft drink sector remains the largest downstream application for polyester bottle chips, accounting for 73.25% of the total, with domestic soft drink companies increasing production capacity, contributing to a demand share of approximately 39% of PET [1] - The processing fees are expected to remain under pressure in 2024 due to short-term capacity expansion and market competition, leading to a decrease in product prices and profit margins [2] - The company is accelerating the PTA technical transformation and expansion project, aiming to enhance market dominance and industry competitiveness through scale advantages and cost control [2]

| 证券代码：600370 | 证券简称：三房巷 | 公告编号：2025-056 | | --- | --- | --- | | 转债代码：110092 | 转债简称：三房转债 | | 江苏三房巷聚材股份有限公司 关于不向下修正"三房转债"转股价格的公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈 述或者重大遗漏，并对其内容的真实性、准确性和完整性承担法律责任。 重要内容提示： 自2025年7月4日至2025年7月24日，江苏三房巷聚材股份有限公司（以下 简称"公司"、"本公司"）股价已出现任意连续三十个交易日中至少有十五个交易 日的收盘价低于当期转股价格的85%的情形，触发"三房转债"转股价格向下修正 条款。 经中国证券监督管理委员会《关于核准江苏三房巷聚材股份有限公司公开发 行可转换公司债券的批复》（证监许可〔2022〕2933号）核准，江苏三房巷聚材 股份有限公司于2023年1月6日公开发行了2,500万张可转换公司债券，每张面值 100元，发行总额250,000万元，期限6年，"三房转债"票面利率为第一年0.30%、 第二年0.50%、第三年1.00%、第四年1.50%、第五年1 ...

| 证券代码：600370 | 证券简称：三房巷 | 公告编号：2025-057 | | --- | --- | --- | | 转债代码：110092 | 转债简称：三房转债 | | 江苏三房巷聚材股份有限公司 关于为全资下属公司提供担保的公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈 述或者重大遗漏，并对其内容的真实性、准确性和完整性承担法律责任。 重要内容提示： 被担保人名称：江阴兴佳新材料有限公司（以下简称"兴佳新材料"） 本次担保金额及已实际为其提供的担保金额：本次提供担保金额人民币 10,000.00 万元。本次担保事项实施后，江苏三房巷聚材股份有限公司（以下简 称"公司"）及下属公司已实际为兴佳新材料提供担保金额 77,324.00 万元（含本 次担保）。 特别风险提示：公司为下属公司及下属公司之间相互担保总额 786,313.41 万元，为控股股东提供担保总额 60,000.00 万元，合计对外担保总额 846,313.41 万元，占公司最近一期经审计合并报表归属于母公司净资产的比例 146.66%，请投资者充分关注担保风险。 一、担保情况概述 制造；科技推广和应用服务 ...

Investment Rating - Investment rating: Positive (maintained) [1] Core Insights - The global demand for polyester bottle chips is steadily increasing, with a CAGR of 6.2% from 2015 to 2024, growing from 20.04 million tons to 34.35 million tons [4][14] - The industry is entering the tail end of the current expansion cycle, with expectations for long-term improvement in profitability as the industry moves past its low point [5][37] - Recent industry-wide production cuts are expected to further enhance price recovery and improve profit margins [6][41] Summary by Sections Demand Side - The global demand for polyester bottle chips has shown a robust upward trend, with Asia-Pacific being the primary market [14][18] - In 2024, the demand for polyester bottle chips in China is projected to reach 8.62 million tons, with the soft drink market accounting for 65% of this demand [19][25] Supply Side - Domestic polyester bottle chip production capacity has increased significantly, from 33.35% of global capacity in 2021 to 47.94% in 2024, making China the world's largest producer [5][36] - The industry is currently experiencing a supply-demand imbalance, leading to a decline in profitability, but this is expected to improve as new capacity additions slow down [5][37] Price Dynamics - The price differential for polyester bottle chips is closely linked to supply and demand dynamics, with recent production cuts leading to a recovery in price differentials from 150-170 RMB/ton to over 400 RMB/ton [6][43] - The industry is anticipated to recover from its current low profitability as production capacity stabilizes and demand continues to grow [31][37] Investment Recommendations - It is recommended to focus on companies benefiting from the industry-wide production cuts and the anticipated recovery in profit margins, including Wan Kai New Materials, Sanfangxiang, and China Resources Materials [7][47]

| 证券代码：600370 | 证券简称：三房巷 | 公告编号：2025-055 | | --- | --- | --- | | 转债代码：110092 | 转债简称：三房转债 | | 关于"三房转债"预计满足转股价格修正条件的提示性公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈 述或者重大遗漏，并对其内容的真实性、准确性和完整性承担法律责任。 一、可转债发行上市概况 经中国证券监督管理委员会《关于核准江苏三房巷聚材股份有限公司公开发 行可转换公司债券的批复》（证监许可〔2022〕2933号）核准，江苏三房巷聚材 股份有限公司（以下简称"公司"、"本公司"）于2023年1月6日公开发行了2,500 万张可转换公司债券（以下简称"三房转债"），每张面值100元，发行总额250,000 万元，期限6年，"三房转债"票面利率为第一年0.30%、第二年0.50%、第三年1.00%、 第四年1.50%、第五年1.80%、第六年2.00%。 经上海证券交易所自律监管决定书[2023]14号文同意，公司发行的25亿元可 转换公司债券于2023年2月7日起在上海证券交易所上市交易，该可转换公司债券 证 ...